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[Feature]: Support Int8 dtype for storing weights - currently uses FP16 wasting 50% of VRAM #4031

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cduk opened this issue Apr 12, 2024 · 1 comment
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[Feature]: Support Int8 dtype for storing weights - currently uses FP16 wasting 50% of VRAM #4031

cduk opened this issue Apr 12, 2024 · 1 comment
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@cduk
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cduk commented Apr 12, 2024

🚀 The feature, motivation and pitch

Could you please add Int8 as a supported dtype? Currently when using Int8 models such as https://huggingface.co/Qwen/Qwen1.5-7B-Chat-GPTQ-Int8 with xformers instead of FlashAttention, the weights are stored as FP16 taking double the VRAM.

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@hmellor
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hmellor commented Apr 12, 2024

We already support GPTQ 8-bit #2330

@hmellor hmellor closed this as completed Apr 12, 2024
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@cduk @hmellor